<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    * {
      margin: 0;
      padding: 0;
    }

    div {
      width: 600px;
      height: 100px;
      background-color: orange;
    }

    span {
      /* margin-right: 100px; */
      /* padding-right: 100px; */

      /* margin-bottom: 100px; */
      padding-bottom: 100px;
    }

  </style>
</head>
<body>
  <div></div>

  <span>我是一个span</span><span>我是一个span</span><span>我是一个span</span>

  <div></div>
</body>
</html>